A large 36 inches, the Anchor medallion gives a stylish and unique look to any floor. The thickness is standard at 3/4 inches, but may be reduced to the thickness of your floor. It comes unfinished with full instructions for installation from start to finish and a templete is provided. The hardwood wear is 5/16" on a 7/16 Russian Birch Backing. Each piece fits closer than a puzzle, bonded together with our own secret adhesive. This is what makes our inlays the finest built anywhere.